搜索结果: 1-15 共查到“理学 cesium”相关记录19条 . 查询时间(0.093 秒)
Scientists monitoring the spread of radiation in the ocean from the Fukushima nuclear accident report finding an increased number of sites off the US West Coast showing signs of contamination from Fuk...
Cesium atoms shaken, not stirred, to create elusive excitation in superfluid
Cesium atoms shaken not stirred elusive excitation superfluid
2015/3/4
Scientists discovered in 1937 that liquid helium-4, when chilled to extremely low temperatures, became a superfluid that could leak through glass, overflow its containers, or eternally gush like ...
Investigation of cesium adsorption on soil and sediment samples from Fukushima Prefecture by sequential extraction and EXAFS technique
cesium adsorption clay minerals sequential extraction extended X-ray absorption fine structure (EXAFS) Fukushima
2017/4/11
Previous studies have shown that radiocesium (mainly 137Cs) was retained at the very surface of soils in Fukushima
Prefecture. Clay minerals and micas are assumed as the main sorbents for cesium (Cs)...
Vertical profiles of Iodine-131 and Cesium-137 in soils in Fukushima Prefecture related to the Fukushima Daiichi Nuclear Power Station Accident
Iodine-131 Cesium-137 clay minerals humic substances Fukushima
2017/4/11
Vertical profiles of iodine-131 and cesium-137 emitted from the Fukushima Daiichi Nuclear Power Station were determined
in soil core samples collected in Fukushima prefecture. The profiles showed tha...
Universality of the Three-Body Parameter for Efimov States in Ultracold Cesium
Three-Body Parameter Efimov States in Ultracold Cesium
2011/9/29
We report on the observation of triatomic Efimov resonances in an ultracold gas of cesium atoms. Exploiting the wide tunability of interactions resulting from three broad Feshbach resonances in the sa...
Test of Anderson-Stuart Model and the "Universal" Conductivity in Rubidium and Cesium Silicate Glasses
Anderson-Stuart Model the "Universal" Conductivity Rubidium and Cesium Silicate Glasses
2010/10/14
An analysis and brief discussion of experimental ionic conductivity s and activation energy EA in the binary rubidium and cesium silicate systems is presented, exemplified on 23 and 30 glasses respect...
Spatial Variability and Cesium-137 Inventories in Native Forest
Spatial Variability Cesium-137 Inventories Native Forest
2010/10/25
With the nuclear fission discovery and development of nuclear weapons in 1940s, artificial radioisotopes were introduced in the environment. This contamination is due to worldwide fallout by superfici...
Bioaccumulation of silver-110m, cobalt-60, cesium-137, and manganese-54 by the freshwater algae Scenedesmus obliquus and Cyclotella meneghiana and by suspended matter collected during a summer bloom event
silver-110m cobalt-60 cesium-137 manganese-54 freshwater algae Scenedesmus obliquus Cyclotella meneghina suspended matter collected summer bloom event
2014/5/22
Laboratory experiments were done to assess 110mAg, 60Co, 137Cs, and 54Mn uptake by two phytoplankton species, the chlorophyte Scenedesmus obliquus and the small diatom Cyclotella meneghiana. Mn and Co...
Effect of Illite Particle Shape on Cesium Sorption
Cesium Sorption Distribution Coefficient Illite Particle Shape
2011/12/8
Abstract: Samples containing illite and illite-smectite, having different crystal shapes (plates, “barrels”, and filaments), were selected for sorption experiments with cesium. There is a positive cor...
Interaction between Cesium Chloride Molecules and Metal Atoms under Coadsorption on a Single Graphite Layer on Iridium
High-Tc superconductors K-doping critical current density resistive transition
2010/4/15
Using the method of continuos flow to investigate the kinetics of reaction between atoms and molecules, the efficiency of substitution reactions (K, Na, Li)+ CsCl is shown to decrease. The efficiency ...
An Aluminum Pillared Montmorillonite with Fast Uptake of Strontium and Cesium from Aqueous Solutions
Cation Exchange Capacity Delamination Pillared Clay Radiocesium Radiostrontium Uptake
2011/12/22
Abstract: The uptake of Sr and Cs by 2 types of aluminum pillared layered clays (Al-PILC), a reference sample (AZA) and a specially tailored sample (FRAZA), were investigated. The AZA sample was prepa...
Sorption parameters are important components of models used to predict mass transport through dense or compacted earthen materials. These parameters are, however, generally determined in batch tests w...
Sorption, Desorption, and Isotope Exchange of Cesium (10−9–10−3 M) on Chlorite
Acid treatment Cation exchange Cesium Chlorite Isotope exchange Sorption
2012/1/13
Batch cation-exchange experiments were performed on chlorite, using synthetic ground water containing cesium in the concentration range 10−9–10−3 M. The sorption behavior was complex; with...
Formation of Highly Selective Cesium-Exchange Sites in Montmorillonites
Cation exchange Cation selectivity Cesium Hofmann-Klemen effect Montmorillonite Wetting-drying
2012/2/1
Ion-exchange sites with very high selectivity for Cs ( ΔG Ca 2+ Cs + = 40 kJ/eq) similar to illite were generated in a controlled way in montmorillonites by (1) repeated wetting-drying cycles and by (...
Hydrothermal Reactions of Clay Minerals and Shales with Cesium Phases from Spent Fuel Elements
Cesium Hydrothermal Illite Nuclear waste Pollucite Shale Uranium
2012/2/8
The immobilization of soluble Cs from spent fuel elements by ion exchange and direct chemical reaction with clay minerals or shales was investigated under hydrothermal conditions. Various clay mineral...